Tread groove noise diffusers
    8.
    发明授权

    公开(公告)号:US06601624B2

    公开(公告)日:2003-08-05

    申请号:US09903056

    申请日:2001-07-11

    CPC classification number: B60C11/0316 B60C11/0302 B60C11/13 B60C2011/0374

    Abstract: A tire tread comprises an intermediate portion disposed between two shoulder portions. The tire tread has an expanded void area with a width and length of 1.2 to 5 times the average width of a non-circumferential groove in the tread. In the illustrated embodiment, the expanded void area is in the intermediate portion of the tread and the void area is divided into two branches which are separated by an island of tread rubber. The illustrated island has a length and a variable width, and has rounded leading and trailing ends. The island is also disposed at an angle with respect to the centerline (CL) of the tread. In the illustrated embodiment, the tread has a circumferential aquachannel, and the islands and the aquachannel are in close proximity to one another.

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